-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Author: Huang Hua <huanghua@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_MDS
#include <lustre_acl.h>
{
}
+static struct portals_handle_ops mfd_handle_ops = {
+ .hop_addref = mdt_mfd_get,
+ .hop_free = NULL,
+};
+
/* Create a new mdt_file_data struct, initialize it,
* and insert it to global hash table */
-struct mdt_file_data *mdt_mfd_new(void)
+struct mdt_file_data *mdt_mfd_new(const struct mdt_export_data *med)
{
- struct mdt_file_data *mfd;
- ENTRY;
-
- OBD_ALLOC_PTR(mfd);
- if (mfd != NULL) {
- CFS_INIT_LIST_HEAD(&mfd->mfd_handle.h_link);
- CFS_INIT_LIST_HEAD(&mfd->mfd_list);
- class_handle_hash(&mfd->mfd_handle, mdt_mfd_get);
- }
- RETURN(mfd);
+ struct mdt_file_data *mfd;
+ ENTRY;
+
+ OBD_ALLOC_PTR(mfd);
+ if (mfd != NULL) {
+ CFS_INIT_LIST_HEAD(&mfd->mfd_handle.h_link);
+ mfd->mfd_handle.h_owner = med;
+ CFS_INIT_LIST_HEAD(&mfd->mfd_list);
+ class_handle_hash(&mfd->mfd_handle, &mfd_handle_ops);
+ }
+
+ RETURN(mfd);
}
/*
* In case of replay the handle is obsoleted
* but mfd can be found in mfd list by that handle
*/
-struct mdt_file_data *mdt_handle2mfd(struct mdt_thread_info *info,
- const struct lustre_handle *handle)
+struct mdt_file_data *mdt_handle2mfd(struct mdt_export_data *med,
+ const struct lustre_handle *handle,
+ bool is_replay_or_resent)
{
- struct ptlrpc_request *req = mdt_info_req(info);
- struct mdt_file_data *mfd;
- ENTRY;
-
- LASSERT(handle != NULL);
- mfd = class_handle2object(handle->cookie);
- /* during dw/setattr replay the mfd can be found by old handle */
- if (mfd == NULL && req_is_replay(req)) {
- struct mdt_export_data *med = &req->rq_export->exp_mdt_data;
- cfs_list_for_each_entry(mfd, &med->med_open_head, mfd_list) {
- if (mfd->mfd_old_handle.cookie == handle->cookie)
- RETURN (mfd);
- }
- mfd = NULL;
- }
- RETURN (mfd);
+ struct mdt_file_data *mfd;
+ ENTRY;
+
+ LASSERT(handle != NULL);
+ mfd = class_handle2object(handle->cookie, med);
+ /* during dw/setattr replay the mfd can be found by old handle */
+ if (mfd == NULL && is_replay_or_resent) {
+ cfs_list_for_each_entry(mfd, &med->med_open_head, mfd_list) {
+ if (mfd->mfd_old_handle.cookie == handle->cookie)
+ RETURN(mfd);
+ }
+ mfd = NULL;
+ }
+
+ RETURN(mfd);
}
/* free mfd */
static int mdt_create_data(struct mdt_thread_info *info,
struct mdt_object *p, struct mdt_object *o)
{
- struct md_op_spec *spec = &info->mti_spec;
- struct md_attr *ma = &info->mti_attr;
- int rc;
- ENTRY;
-
- if (!md_should_create(spec->sp_cr_flags))
- RETURN(0);
-
- ma->ma_need = MA_INODE | MA_LOV;
- ma->ma_valid = 0;
- rc = mdo_create_data(info->mti_env,
- p ? mdt_object_child(p) : NULL,
- mdt_object_child(o), spec, ma);
- RETURN(rc);
+ struct md_op_spec *spec = &info->mti_spec;
+ struct md_attr *ma = &info->mti_attr;
+ int rc = 0;
+ ENTRY;
+
+ if (!md_should_create(spec->sp_cr_flags))
+ RETURN(0);
+
+ ma->ma_need = MA_INODE | MA_LOV;
+ ma->ma_valid = 0;
+ mutex_lock(&o->mot_lov_mutex);
+ if (!(o->mot_flags & MOF_LOV_CREATED)) {
+ if (p != NULL && (fid_is_obf(mdt_object_fid(p)) ||
+ fid_is_dot_lustre(mdt_object_fid(p))))
+ GOTO(unlock, rc = -EPERM);
+
+ rc = mdo_create_data(info->mti_env,
+ p ? mdt_object_child(p) : NULL,
+ mdt_object_child(o), spec, ma);
+ if (rc == 0)
+ rc = mdt_attr_get_complex(info, o, ma);
+
+ if (rc == 0 && ma->ma_valid & MA_LOV)
+ o->mot_flags |= MOF_LOV_CREATED;
+ }
+unlock:
+ mutex_unlock(&o->mot_lov_mutex);
+ RETURN(rc);
}
static int mdt_ioepoch_opened(struct mdt_object *mo)
/**
* Re-enable Size-on-MDS.
- * Call under ->mot_ioepoch_sem.
+ * Call under ->mot_ioepoch_mutex.
*/
static void mdt_object_som_enable(struct mdt_object *mo, __u64 ioepoch)
{
/**
* Open the IOEpoch. It is allowed if @writecount is not negative.
- * The epoch and writecount handling is performed under the mot_ioepoch_sem.
+ * The epoch and writecount handling is performed under the mot_ioepoch_mutex.
*/
int mdt_ioepoch_open(struct mdt_thread_info *info, struct mdt_object *o,
int created)
int rc = 0;
ENTRY;
- if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) ||
- !S_ISREG(lu_object_attr(&o->mot_obj.mo_lu)))
- RETURN(0);
-
- cfs_down(&o->mot_ioepoch_sem);
- if (mdt_ioepoch_opened(o)) {
- /* Epoch continues even if there is no writers yet. */
- CDEBUG(D_INODE, "continue epoch "LPU64" for "DFID"\n",
- o->mot_ioepoch, PFID(mdt_object_fid(o)));
- } else {
- /* XXX: ->mdt_ioepoch is not initialized at the mount */
- cfs_spin_lock(&mdt->mdt_ioepoch_lock);
+ if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) ||
+ !S_ISREG(lu_object_attr(&o->mot_obj)))
+ RETURN(0);
+
+ mutex_lock(&o->mot_ioepoch_mutex);
+ if (mdt_ioepoch_opened(o)) {
+ /* Epoch continues even if there is no writers yet. */
+ CDEBUG(D_INODE, "continue epoch "LPU64" for "DFID"\n",
+ o->mot_ioepoch, PFID(mdt_object_fid(o)));
+ } else {
+ /* XXX: ->mdt_ioepoch is not initialized at the mount */
+ spin_lock(&mdt->mdt_ioepoch_lock);
if (mdt->mdt_ioepoch < info->mti_replayepoch)
mdt->mdt_ioepoch = info->mti_replayepoch;
else
o->mot_ioepoch = mdt->mdt_ioepoch;
- cfs_spin_unlock(&mdt->mdt_ioepoch_lock);
+ spin_unlock(&mdt->mdt_ioepoch_lock);
- CDEBUG(D_INODE, "starting epoch "LPU64" for "DFID"\n",
- o->mot_ioepoch, PFID(mdt_object_fid(o)));
- if (created)
- o->mot_flags |= MOF_SOM_CREATED;
- cancel = 1;
- }
- o->mot_ioepoch_count++;
- cfs_up(&o->mot_ioepoch_sem);
+ CDEBUG(D_INODE, "starting epoch "LPU64" for "DFID"\n",
+ o->mot_ioepoch, PFID(mdt_object_fid(o)));
+ if (created)
+ o->mot_flags |= MOF_SOM_CREATED;
+ cancel = 1;
+ }
+ o->mot_ioepoch_count++;
+ mutex_unlock(&o->mot_ioepoch_mutex);
/* Cancel Size-on-MDS attributes cached on clients for the open case.
* In the truncate case, see mdt_reint_setattr(). */
/**
* Update SOM on-disk attributes.
* If enabling, write update inodes and lustre-ea with the proper IOEpoch,
- * mountid and attributes. If disabling, zero IOEpoch id in lustre-ea.
- * Call under ->mot_ioepoch_sem.
+ * mountid and attributes. If disabling, clean SOM xattr.
+ * Call under ->mot_ioepoch_mutex.
*/
static int mdt_som_attr_set(struct mdt_thread_info *info,
- struct mdt_object *obj, __u64 ioepoch, int enable)
+ struct mdt_object *obj, __u64 ioepoch, bool enable)
{
- struct md_attr *ma = &info->mti_attr;
- int rc;
+ struct md_object *next = mdt_object_child(obj);
+ int rc;
ENTRY;
CDEBUG(D_INODE, "Size-on-MDS attribute %s for epoch "LPU64
" on "DFID".\n", enable ? "update" : "disabling",
ioepoch, PFID(mdt_object_fid(obj)));
- ma->ma_valid |= MA_SOM;
- ma->ma_som = &info->mti_u.som.data;
- if (enable) {
- struct mdt_device *mdt = info->mti_mdt;
- struct lu_attr *la = &ma->ma_attr;
-
- ma->ma_som->msd_ioepoch = ioepoch;
- ma->ma_som->msd_size = la->la_valid & LA_SIZE ? la->la_size : 0;
- ma->ma_som->msd_blocks = la->la_valid & LA_BLOCKS ?
- la->la_blocks : 0;
- ma->ma_som->msd_mountid = mdt->mdt_lut.lut_obd->u.obt.obt_mount_count;
- ma->ma_attr.la_valid &= LA_ATIME | LA_MTIME | LA_CTIME;
- } else {
- ma->ma_som->msd_ioepoch = IOEPOCH_INVAL;
- ma->ma_attr.la_valid &= LA_ATIME;
- }
-
- /* Since we have opened the file, it is unnecessary
- * to check permission when close it. Between the "open"
- * and "close", maybe someone has changed the file mode
- * or flags, or the file created mode do not permit wirte,
- * and so on. Just set MDS_PERM_BYPASS for all the cases. */
- ma->ma_attr_flags |= MDS_PERM_BYPASS | MDS_SOM;
+ if (enable) {
+ struct lu_buf *buf = &info->mti_buf;
+ struct som_attrs *attrs;
+ struct md_attr *ma = &info->mti_attr;
+ struct lu_attr *la = &ma->ma_attr;
+ struct obd_device *obd = info->mti_mdt->mdt_lut.lut_obd;
+
+ attrs = (struct som_attrs *)info->mti_xattr_buf;
+ CLASSERT(sizeof(info->mti_xattr_buf) >= sizeof(*attrs));
+
+ /* pack SOM attributes */
+ memset(attrs, 0, sizeof(*attrs));
+ attrs->som_ioepoch = ioepoch;
+ attrs->som_mountid = obd->u.obt.obt_mount_count;
+ if ((la->la_valid & LA_SIZE) != 0)
+ attrs->som_size = la->la_size;
+ if ((la->la_valid & LA_BLOCKS) != 0)
+ attrs->som_blocks = la->la_blocks;
+ lustre_som_swab(attrs);
+
+ /* update SOM attributes */
+ buf->lb_buf = attrs;
+ buf->lb_len = sizeof(*attrs);
+ rc = mo_xattr_set(info->mti_env, next, buf, XATTR_NAME_SOM, 0);
+ } else {
+ /* delete SOM attributes */
+ rc = mo_xattr_del(info->mti_env, next, XATTR_NAME_SOM);
+ }
- rc = mdt_attr_set(info, obj, ma, 0);
RETURN(rc);
}
{
int rc = 0;
- cfs_down(&o->mot_ioepoch_sem);
+ mutex_lock(&o->mot_ioepoch_mutex);
CDEBUG(D_INODE, "Eviction. Closing IOepoch "LPU64" on "DFID". "
"Count %d\n", o->mot_ioepoch, PFID(mdt_object_fid(o)),
o->mot_ioepoch_count);
rc = mdt_som_attr_set(info, o, o->mot_ioepoch, MDT_SOM_DISABLE);
mdt_object_som_enable(o, o->mot_ioepoch);
}
- cfs_up(&o->mot_ioepoch_sem);
+ mutex_unlock(&o->mot_ioepoch_mutex);
RETURN(rc);
}
int rc = MDT_IOEPOCH_CLOSED;
ENTRY;
- cfs_down(&o->mot_ioepoch_sem);
+ mutex_lock(&o->mot_ioepoch_mutex);
CDEBUG(D_INODE, "Replay. Closing epoch "LPU64" on "DFID". Count %d\n",
o->mot_ioepoch, PFID(mdt_object_fid(o)), o->mot_ioepoch_count);
o->mot_ioepoch_count--;
if (!mdt_ioepoch_opened(o))
mdt_object_som_enable(o, info->mti_ioepoch->ioepoch);
- cfs_up(&o->mot_ioepoch_sem);
+ mutex_unlock(&o->mot_ioepoch_mutex);
RETURN(rc);
}
la = &info->mti_attr.ma_attr;
achange = (info->mti_ioepoch->flags & MF_SOM_CHANGE);
- cfs_down(&o->mot_ioepoch_sem);
+ mutex_lock(&o->mot_ioepoch_mutex);
o->mot_ioepoch_count--;
tmp_ma = &info->mti_u.som.attr;
tmp_ma->ma_som = &info->mti_u.som.data;
tmp_ma->ma_need = MA_INODE | MA_LOV | MA_SOM;
tmp_ma->ma_valid = 0;
- rc = mo_attr_get(info->mti_env, mdt_object_child(o), tmp_ma);
+ rc = mdt_attr_get_complex(info, o, tmp_ma);
if (rc)
GOTO(error_up, rc);
mdt_object_som_enable(o, o->mot_ioepoch);
}
- cfs_up(&o->mot_ioepoch_sem);
+ mutex_unlock(&o->mot_ioepoch_mutex);
/* If recovery is needed, tell the client to perform GETATTR under
* the lock. */
if (ret == MDT_IOEPOCH_GETATTR && recovery) {
RETURN(rc ? : ret);
error_up:
- cfs_up(&o->mot_ioepoch_sem);
+ mutex_unlock(&o->mot_ioepoch_mutex);
return rc;
}
/**
- * Close IOEpoch (opened file or FMODE_EPOCH state). It happens if:
+ * Close IOEpoch (opened file or MDS_FMODE_EPOCH state). It happens if:
* - a client closes the IOEpoch;
* - a client eviction occured.
* Return values:
*/
static int mdt_ioepoch_close(struct mdt_thread_info *info, struct mdt_object *o)
{
- struct ptlrpc_request *req = mdt_info_req(info);
- ENTRY;
+ struct ptlrpc_request *req = mdt_info_req(info);
+ ENTRY;
- if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) ||
- !S_ISREG(lu_object_attr(&o->mot_obj.mo_lu)))
- RETURN(0);
+ if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) ||
+ !S_ISREG(lu_object_attr(&o->mot_obj)))
+ RETURN(0);
LASSERT(o->mot_ioepoch_count);
LASSERT(info->mti_ioepoch == NULL ||
}
/**
- * Close FMODE_SOM state, when IOEpoch is already closed and we are waiting for
- * attribute update. It happens if:
+ * Close MDS_FMODE_SOM state, when IOEpoch is already closed and we are waiting
+ * for attribute update. It happens if:
* - SOM Attribute Update is obtained;
* - the client failed to obtain it and informs MDS about it;
* - a client eviction occured.
*/
int mdt_som_au_close(struct mdt_thread_info *info, struct mdt_object *o)
{
- struct ptlrpc_request *req = mdt_info_req(info);
- __u64 ioepoch = 0;
- int act = MDT_SOM_ENABLE;
- int rc = 0;
- ENTRY;
+ struct ptlrpc_request *req = mdt_info_req(info);
+ __u64 ioepoch = 0;
+ int act = MDT_SOM_ENABLE;
+ int rc = 0;
+ ENTRY;
- LASSERT(!req || info->mti_ioepoch);
- if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) ||
- !S_ISREG(lu_object_attr(&o->mot_obj.mo_lu)))
- RETURN(0);
+ LASSERT(!req || info->mti_ioepoch);
+ if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) ||
+ !S_ISREG(lu_object_attr(&o->mot_obj)))
+ RETURN(0);
/* No size whereas MF_SOM_CHANGE is set means client failed to
* obtain ost attributes, drop the SOM cache on disk if so. */
!(info->mti_attr.ma_attr.la_valid & LA_SIZE)))
act = MDT_SOM_DISABLE;
- cfs_down(&o->mot_ioepoch_sem);
+ mutex_lock(&o->mot_ioepoch_mutex);
/* Mark the object it is the recovery state if we failed to obtain
* SOM attributes. */
if (act == MDT_SOM_DISABLE)
rc = mdt_som_attr_set(info, o, ioepoch, act);
mdt_object_som_enable(o, ioepoch);
}
- cfs_up(&o->mot_ioepoch_sem);
+ mutex_unlock(&o->mot_ioepoch_mutex);
RETURN(rc);
}
{
int rc = 0;
ENTRY;
- cfs_down(&o->mot_ioepoch_sem);
+ mutex_lock(&o->mot_ioepoch_mutex);
rc = o->mot_writecount;
- cfs_up(&o->mot_ioepoch_sem);
+ mutex_unlock(&o->mot_ioepoch_mutex);
RETURN(rc);
}
{
int rc = 0;
ENTRY;
- cfs_down(&o->mot_ioepoch_sem);
+ mutex_lock(&o->mot_ioepoch_mutex);
if (o->mot_writecount < 0)
rc = -ETXTBSY;
else
o->mot_writecount++;
- cfs_up(&o->mot_ioepoch_sem);
+ mutex_unlock(&o->mot_ioepoch_mutex);
RETURN(rc);
}
void mdt_write_put(struct mdt_object *o)
{
ENTRY;
- cfs_down(&o->mot_ioepoch_sem);
+ mutex_lock(&o->mot_ioepoch_mutex);
o->mot_writecount--;
- cfs_up(&o->mot_ioepoch_sem);
+ mutex_unlock(&o->mot_ioepoch_mutex);
EXIT;
}
{
int rc = 0;
ENTRY;
- cfs_down(&o->mot_ioepoch_sem);
+ mutex_lock(&o->mot_ioepoch_mutex);
if (o->mot_writecount > 0)
rc = -ETXTBSY;
else
o->mot_writecount--;
- cfs_up(&o->mot_ioepoch_sem);
+ mutex_unlock(&o->mot_ioepoch_mutex);
RETURN(rc);
}
static void mdt_write_allow(struct mdt_object *o)
{
ENTRY;
- cfs_down(&o->mot_ioepoch_sem);
+ mutex_lock(&o->mot_ioepoch_mutex);
o->mot_writecount++;
- cfs_up(&o->mot_ioepoch_sem);
+ mutex_unlock(&o->mot_ioepoch_mutex);
EXIT;
}
/* there can be no real transaction so prepare the fake one */
-static void mdt_empty_transno(struct mdt_thread_info* info)
+static void mdt_empty_transno(struct mdt_thread_info *info, int rc)
{
- struct mdt_device *mdt = info->mti_mdt;
- struct ptlrpc_request *req = mdt_info_req(info);
+ struct mdt_device *mdt = info->mti_mdt;
+ struct ptlrpc_request *req = mdt_info_req(info);
+ struct tg_export_data *ted;
+ struct lsd_client_data *lcd;
ENTRY;
/* transaction has occurred already */
- if (lustre_msg_get_transno(req->rq_repmsg) != 0) {
- EXIT;
- return;
- }
-
- cfs_spin_lock(&mdt->mdt_lut.lut_translock);
- if (info->mti_transno == 0) {
- info->mti_transno = ++ mdt->mdt_lut.lut_last_transno;
+ if (lustre_msg_get_transno(req->rq_repmsg) != 0)
+ RETURN_EXIT;
+
+ spin_lock(&mdt->mdt_lut.lut_translock);
+ if (rc != 0) {
+ if (info->mti_transno != 0) {
+ struct obd_export *exp = req->rq_export;
+
+ CERROR("%s: replay trans "LPU64" NID %s: rc = %d\n",
+ mdt_obd_name(mdt), info->mti_transno,
+ libcfs_nid2str(exp->exp_connection->c_peer.nid),
+ rc);
+ spin_unlock(&mdt->mdt_lut.lut_translock);
+ RETURN_EXIT;
+ }
+ } else if (info->mti_transno == 0) {
+ info->mti_transno = ++mdt->mdt_lut.lut_last_transno;
+ } else {
+ /* should be replay */
+ if (info->mti_transno > mdt->mdt_lut.lut_last_transno)
+ mdt->mdt_lut.lut_last_transno = info->mti_transno;
+ }
+ spin_unlock(&mdt->mdt_lut.lut_translock);
+
+ CDEBUG(D_INODE, "transno = "LPU64", last_committed = "LPU64"\n",
+ info->mti_transno,
+ req->rq_export->exp_obd->obd_last_committed);
+
+ req->rq_transno = info->mti_transno;
+ lustre_msg_set_transno(req->rq_repmsg, info->mti_transno);
+
+ /* update lcd in memory only for resent cases */
+ ted = &req->rq_export->exp_target_data;
+ LASSERT(ted);
+ mutex_lock(&ted->ted_lcd_lock);
+ lcd = ted->ted_lcd;
+ if (info->mti_transno < lcd->lcd_last_transno &&
+ info->mti_transno != 0) {
+ /* This should happen during replay. Do not update
+ * last rcvd info if replay req transno < last transno,
+ * otherwise the following resend(after replay) can not
+ * be checked correctly by xid */
+ mutex_unlock(&ted->ted_lcd_lock);
+ CDEBUG(D_HA, "%s: transno = "LPU64" < last_transno = "LPU64"\n",
+ mdt_obd_name(mdt), info->mti_transno,
+ lcd->lcd_last_transno);
+ RETURN_EXIT;
+ }
+
+ if (lustre_msg_get_opc(req->rq_reqmsg) == MDS_CLOSE ||
+ lustre_msg_get_opc(req->rq_reqmsg) == MDS_DONE_WRITING) {
+ if (info->mti_transno != 0)
+ lcd->lcd_last_close_transno = info->mti_transno;
+ lcd->lcd_last_close_xid = req->rq_xid;
+ lcd->lcd_last_close_result = rc;
} else {
- /* should be replay */
- if (info->mti_transno > mdt->mdt_lut.lut_last_transno)
- mdt->mdt_lut.lut_last_transno = info->mti_transno;
- }
- cfs_spin_unlock(&mdt->mdt_lut.lut_translock);
+ /* VBR: save versions in last_rcvd for reconstruct. */
+ __u64 *pre_versions = lustre_msg_get_versions(req->rq_repmsg);
+ if (pre_versions) {
+ lcd->lcd_pre_versions[0] = pre_versions[0];
+ lcd->lcd_pre_versions[1] = pre_versions[1];
+ lcd->lcd_pre_versions[2] = pre_versions[2];
+ lcd->lcd_pre_versions[3] = pre_versions[3];
+ }
+ if (info->mti_transno != 0)
+ lcd->lcd_last_transno = info->mti_transno;
- CDEBUG(D_INODE, "transno = "LPU64", last_committed = "LPU64"\n",
- info->mti_transno,
- req->rq_export->exp_obd->obd_last_committed);
+ lcd->lcd_last_xid = req->rq_xid;
+ lcd->lcd_last_result = rc;
+ lcd->lcd_last_data = info->mti_opdata;
+ }
+ mutex_unlock(&ted->ted_lcd_lock);
- req->rq_transno = info->mti_transno;
- lustre_msg_set_transno(req->rq_repmsg, info->mti_transno);
EXIT;
}
-void mdt_mfd_set_mode(struct mdt_file_data *mfd, int mode)
+void mdt_mfd_set_mode(struct mdt_file_data *mfd, __u64 mode)
{
- LASSERT(mfd != NULL);
+ LASSERT(mfd != NULL);
- CDEBUG(D_HA, "Change mfd %p mode 0x%x->0x%x\n",
- mfd, (unsigned int)mfd->mfd_mode, (unsigned int)mode);
+ CDEBUG(D_HA, DFID " Change mfd mode "LPO64" -> "LPO64".\n",
+ PFID(mdt_object_fid(mfd->mfd_object)), mfd->mfd_mode, mode);
- mfd->mfd_mode = mode;
+ mfd->mfd_mode = mode;
}
static int mdt_mfd_open(struct mdt_thread_info *info, struct mdt_object *p,
isreg = S_ISREG(la->la_mode);
isdir = S_ISDIR(la->la_mode);
- if (isreg && !(ma->ma_valid & MA_LOV)) {
+ if (isreg && !(ma->ma_valid & MA_LOV) && !(flags & MDS_OPEN_RELEASE)) {
/*
* No EA, check whether it is will set regEA and dirEA since in
* above attr get, these size might be zero, so reset it, to
repbody->ioepoch = o->mot_ioepoch;
}
} else if (flags & MDS_FMODE_EXEC) {
- rc = mdt_write_deny(o);
+ /* if file is released, we can't deny write because we must
+ * restore (write) it to access it.*/
+ if ((ma->ma_valid & MA_HSM) &&
+ (ma->ma_hsm.mh_flags & HS_RELEASED))
+ rc = 0;
+ else
+ rc = mdt_write_deny(o);
}
if (rc)
RETURN(rc);
rc = mo_open(info->mti_env, mdt_object_child(o),
created ? flags | MDS_OPEN_CREATED : flags);
if (rc)
- RETURN(rc);
-
- mfd = mdt_mfd_new();
- if (mfd != NULL) {
- /*
- * Keep a reference on this object for this open, and is
- * released by mdt_mfd_close().
- */
- mdt_object_get(info->mti_env, o);
-
- /*
- * @flags is always not zero. At least it should be FMODE_READ,
- * FMODE_WRITE or FMODE_EXEC.
- */
- LASSERT(flags != 0);
-
- /* Open handling. */
- mdt_mfd_set_mode(mfd, flags);
-
- mfd->mfd_object = o;
- mfd->mfd_xid = req->rq_xid;
-
- /* replay handle */
- if (req_is_replay(req)) {
- struct mdt_file_data *old_mfd;
- /* Check wheather old cookie already exist in
- * the list, becasue when do recovery, client
- * might be disconnected from server, and
- * restart replay, so there maybe some orphan
- * mfd here, we should remove them */
- LASSERT(info->mti_rr.rr_handle != NULL);
- old_mfd = mdt_handle2mfd(info, info->mti_rr.rr_handle);
- if (old_mfd) {
- CDEBUG(D_HA, "del orph mfd %p fid=("DFID") "
- "cookie=" LPX64"\n", mfd,
- PFID(mdt_object_fid(mfd->mfd_object)),
- info->mti_rr.rr_handle->cookie);
- cfs_spin_lock(&med->med_open_lock);
- class_handle_unhash(&old_mfd->mfd_handle);
- cfs_list_del_init(&old_mfd->mfd_list);
- cfs_spin_unlock(&med->med_open_lock);
- mdt_mfd_close(info, old_mfd);
- }
- CDEBUG(D_HA, "Store old cookie "LPX64" in new mfd\n",
- info->mti_rr.rr_handle->cookie);
- mfd->mfd_old_handle.cookie =
- info->mti_rr.rr_handle->cookie;
- }
- repbody->handle.cookie = mfd->mfd_handle.h_cookie;
-
- if (req->rq_export->exp_disconnected) {
- cfs_spin_lock(&med->med_open_lock);
- class_handle_unhash(&mfd->mfd_handle);
- cfs_list_del_init(&mfd->mfd_list);
- cfs_spin_unlock(&med->med_open_lock);
- mdt_mfd_close(info, mfd);
- } else {
- cfs_spin_lock(&med->med_open_lock);
- cfs_list_add(&mfd->mfd_list, &med->med_open_head);
- cfs_spin_unlock(&med->med_open_lock);
- }
-
- mdt_empty_transno(info);
- } else
- rc = -ENOMEM;
+ GOTO(err_out, rc);
+
+ mfd = mdt_mfd_new(med);
+ if (mfd == NULL)
+ GOTO(err_out, rc = -ENOMEM);
+
+ /*
+ * Keep a reference on this object for this open, and is
+ * released by mdt_mfd_close().
+ */
+ mdt_object_get(info->mti_env, o);
+ mfd->mfd_object = o;
+ mfd->mfd_xid = req->rq_xid;
+
+ /*
+ * @flags is always not zero. At least it should be FMODE_READ,
+ * FMODE_WRITE or MDS_FMODE_EXEC.
+ */
+ LASSERT(flags != 0);
+
+ /* Open handling. */
+ mdt_mfd_set_mode(mfd, flags);
+
+ atomic_inc(&o->mot_open_count);
+ if (flags & MDS_OPEN_LEASE)
+ atomic_inc(&o->mot_lease_count);
+
+ /* replay handle */
+ if (req_is_replay(req)) {
+ struct mdt_file_data *old_mfd;
+ /* Check wheather old cookie already exist in
+ * the list, becasue when do recovery, client
+ * might be disconnected from server, and
+ * restart replay, so there maybe some orphan
+ * mfd here, we should remove them */
+ LASSERT(info->mti_rr.rr_handle != NULL);
+ old_mfd = mdt_handle2mfd(med, info->mti_rr.rr_handle, true);
+ if (old_mfd != NULL) {
+ CDEBUG(D_HA, "delete orphan mfd = %p, fid = "DFID", "
+ "cookie = "LPX64"\n", mfd,
+ PFID(mdt_object_fid(mfd->mfd_object)),
+ info->mti_rr.rr_handle->cookie);
+ spin_lock(&med->med_open_lock);
+ class_handle_unhash(&old_mfd->mfd_handle);
+ cfs_list_del_init(&old_mfd->mfd_list);
+ spin_unlock(&med->med_open_lock);
+ /* no attr update for that close */
+ la->la_valid = 0;
+ ma->ma_valid |= MA_FLAGS;
+ ma->ma_attr_flags |= MDS_RECOV_OPEN;
+ mdt_mfd_close(info, old_mfd);
+ ma->ma_attr_flags &= ~MDS_RECOV_OPEN;
+ ma->ma_valid &= ~MA_FLAGS;
+ }
+
+ CDEBUG(D_HA, "Store old cookie "LPX64" in new mfd\n",
+ info->mti_rr.rr_handle->cookie);
+
+ mfd->mfd_old_handle.cookie = info->mti_rr.rr_handle->cookie;
+ }
+
+ repbody->handle.cookie = mfd->mfd_handle.h_cookie;
+
+ if (req->rq_export->exp_disconnected) {
+ spin_lock(&med->med_open_lock);
+ class_handle_unhash(&mfd->mfd_handle);
+ cfs_list_del_init(&mfd->mfd_list);
+ spin_unlock(&med->med_open_lock);
+ mdt_mfd_close(info, mfd);
+ } else {
+ spin_lock(&med->med_open_lock);
+ cfs_list_add(&mfd->mfd_list, &med->med_open_head);
+ spin_unlock(&med->med_open_lock);
+ }
+
+ mdt_empty_transno(info, rc);
RETURN(rc);
-}
+err_out:
+ if (flags & FMODE_WRITE)
+ /* XXX We also need to close io epoch here.
+ * See LU-1220 - green */
+ mdt_write_put(o);
+ else if (flags & FMODE_EXEC)
+ mdt_write_allow(o);
+ return rc;
+}
-static int mdt_finish_open(struct mdt_thread_info *info,
- struct mdt_object *p, struct mdt_object *o,
- __u64 flags, int created, struct ldlm_reply *rep)
+int mdt_finish_open(struct mdt_thread_info *info,
+ struct mdt_object *p, struct mdt_object *o,
+ __u64 flags, int created, struct ldlm_reply *rep)
{
struct ptlrpc_request *req = mdt_info_req(info);
struct obd_export *exp = req->rq_export;
islnk = S_ISLNK(la->la_mode);
mdt_pack_attr2body(info, repbody, la, mdt_object_fid(o));
+ /* LU-2275, simulate broken behaviour (esp. prevalent in
+ * pre-2.4 servers where a very strange reply is sent on error
+ * that looks like it was actually almost succesful and a failure at the
+ * same time */
+ if (OBD_FAIL_CHECK(OBD_FAIL_MDS_NEGATIVE_POSITIVE)) {
+ mdt_set_disposition(info, rep, DISP_OPEN_OPEN |
+ DISP_LOOKUP_NEG |
+ DISP_LOOKUP_POS);
+
+ if (flags & MDS_OPEN_LOCK)
+ mdt_set_disposition(info, rep, DISP_OPEN_LOCK);
+
+ RETURN(-ENOENT);
+ }
+
if (exp_connect_rmtclient(exp)) {
void *buf = req_capsule_server_get(info->mti_pill, &RMF_ACL);
}
}
#ifdef CONFIG_FS_POSIX_ACL
- else if (exp->exp_connect_flags & OBD_CONNECT_ACL) {
+ else if (exp_connect_flags(exp) & OBD_CONNECT_ACL) {
const struct lu_env *env = info->mti_env;
struct md_object *next = mdt_object_child(o);
struct lu_buf *buf = &info->mti_buf;
}
#endif
- if (info->mti_mdt->mdt_opts.mo_mds_capa &&
- exp->exp_connect_flags & OBD_CONNECT_MDS_CAPA) {
+ if (info->mti_mdt->mdt_opts.mo_mds_capa &&
+ exp_connect_flags(exp) & OBD_CONNECT_MDS_CAPA) {
struct lustre_capa *capa;
capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA1);
RETURN(rc);
repbody->valid |= OBD_MD_FLMDSCAPA;
}
- if (info->mti_mdt->mdt_opts.mo_oss_capa &&
- exp->exp_connect_flags & OBD_CONNECT_OSS_CAPA &&
- S_ISREG(lu_object_attr(&o->mot_obj.mo_lu))) {
+
+ if (info->mti_mdt->mdt_opts.mo_oss_capa &&
+ exp_connect_flags(exp) & OBD_CONNECT_OSS_CAPA &&
+ S_ISREG(lu_object_attr(&o->mot_obj))) {
struct lustre_capa *capa;
capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA2);
* If we are following a symlink, don't open; and do not return open
* handle for special nodes as client required.
*/
- if (islnk || (!isreg && !isdir &&
- (req->rq_export->exp_connect_flags & OBD_CONNECT_NODEVOH))) {
- lustre_msg_set_transno(req->rq_repmsg, 0);
- RETURN(0);
- }
-
- mdt_set_disposition(info, rep, DISP_OPEN_OPEN);
+ if (islnk || (!isreg && !isdir &&
+ (exp_connect_flags(req->rq_export) & OBD_CONNECT_NODEVOH))) {
+ lustre_msg_set_transno(req->rq_repmsg, 0);
+ RETURN(0);
+ }
/*
* We need to return the existing object's fid back, so it is done here,
mfd = NULL;
if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) {
- cfs_spin_lock(&med->med_open_lock);
- cfs_list_for_each(t, &med->med_open_head) {
- mfd = cfs_list_entry(t, struct mdt_file_data, mfd_list);
- if (mfd->mfd_xid == req->rq_xid) {
- break;
- }
- mfd = NULL;
- }
- cfs_spin_unlock(&med->med_open_lock);
+ spin_lock(&med->med_open_lock);
+ cfs_list_for_each(t, &med->med_open_head) {
+ mfd = cfs_list_entry(t, struct mdt_file_data, mfd_list);
+ if (mfd->mfd_xid == req->rq_xid)
+ break;
+ mfd = NULL;
+ }
+ spin_unlock(&med->med_open_lock);
if (mfd != NULL) {
repbody->handle.cookie = mfd->mfd_handle.h_cookie;
else
repbody->valid |= OBD_MD_FLEASIZE;
}
+ mdt_set_disposition(info, rep, DISP_OPEN_OPEN);
RETURN(0);
}
}
rc = mdt_mfd_open(info, p, o, flags, created);
+ if (!rc)
+ mdt_set_disposition(info, rep, DISP_OPEN_OPEN);
+
RETURN(rc);
}
ma->ma_lmm = req_capsule_server_get(pill, &RMF_MDT_MD);
ma->ma_lmm_size = req_capsule_get_size(pill, &RMF_MDT_MD,
RCL_SERVER);
- ma->ma_need = MA_INODE;
+ ma->ma_need = MA_INODE | MA_HSM;
if (ma->ma_lmm_size > 0)
ma->ma_need |= MA_LOV;
mdt_req_from_lcd(req, lcd);
mdt_set_disposition(info, ldlm_rep, lcd->lcd_last_data);
- CERROR("This is reconstruct open: disp="LPX64", result=%d\n",
- ldlm_rep->lock_policy_res1, req->rq_status);
+ CDEBUG(D_INODE, "This is reconstruct open: disp="LPX64", result=%d\n",
+ ldlm_rep->lock_policy_res1, req->rq_status);
if (mdt_get_disposition(ldlm_rep, DISP_OPEN_CREATE) &&
req->rq_status != 0)
rc = PTR_ERR(parent);
LCONSOLE_WARN("Parent "DFID" lookup error %d."
" Evicting client %s with export %s.\n",
- PFID(mdt_object_fid(parent)), rc,
+ PFID(rr->rr_fid1), rc,
obd_uuid2str(&exp->exp_client_uuid),
obd_export_nid2str(exp));
mdt_export_evict(exp);
- EXIT;
- return;
+ RETURN_EXIT;
}
child = mdt_object_find(env, mdt, rr->rr_fid2);
if (IS_ERR(child)) {
obd_export_nid2str(exp));
mdt_object_put(env, parent);
mdt_export_evict(exp);
- EXIT;
- return;
- }
- rc = mdt_object_exists(child);
- if (rc > 0) {
- struct md_object *next;
-
- mdt_set_capainfo(info, 1, rr->rr_fid2, BYPASS_CAPA);
- next = mdt_object_child(child);
- rc = mo_attr_get(env, next, ma);
- if (rc == 0)
- rc = mdt_finish_open(info, parent, child,
- flags, 1, ldlm_rep);
- } else if (rc < 0) {
- /* the child object was created on remote server */
- repbody->fid1 = *rr->rr_fid2;
- repbody->valid |= (OBD_MD_FLID | OBD_MD_MDS);
- rc = 0;
- } else if (rc == 0) {
- /* the child does not exist, we should do regular open */
- mdt_object_put(env, parent);
- mdt_object_put(env, child);
- GOTO(regular_open, 0);
+ RETURN_EXIT;
}
+
+ if (unlikely(mdt_object_remote(child))) {
+ /* the child object was created on remote server */
+ if (!mdt_is_dne_client(exp)) {
+ /* Return -EIO for old client */
+ mdt_object_put(env, parent);
+ mdt_object_put(env, child);
+ GOTO(out, rc = -EIO);
+ }
+ repbody->fid1 = *rr->rr_fid2;
+ repbody->valid |= (OBD_MD_FLID | OBD_MD_MDS);
+ rc = 0;
+ } else {
+ if (mdt_object_exists(child)) {
+ mdt_set_capainfo(info, 1, rr->rr_fid2,
+ BYPASS_CAPA);
+ rc = mdt_attr_get_complex(info, child, ma);
+ if (rc == 0)
+ rc = mdt_finish_open(info, parent,
+ child, flags,
+ 1, ldlm_rep);
+ } else {
+ /* the child does not exist, we should do
+ * regular open */
+ mdt_object_put(env, parent);
+ mdt_object_put(env, child);
+ GOTO(regular_open, 0);
+ }
+ }
mdt_object_put(env, parent);
mdt_object_put(env, child);
GOTO(out, rc);
LASSERT(ergo(rc < 0, lustre_msg_get_transno(req->rq_repmsg) == 0));
}
-static int mdt_open_by_fid(struct mdt_thread_info* info,
- struct ldlm_reply *rep)
+int mdt_open_by_fid(struct mdt_thread_info* info,
+ struct ldlm_reply *rep)
{
- const struct lu_env *env = info->mti_env;
__u32 flags = info->mti_spec.sp_cr_flags;
struct mdt_reint_record *rr = &info->mti_rr;
struct md_attr *ma = &info->mti_attr;
if (IS_ERR(o))
RETURN(rc = PTR_ERR(o));
- rc = mdt_object_exists(o);
- if (rc > 0) {
- mdt_set_disposition(info, rep, (DISP_IT_EXECD |
- DISP_LOOKUP_EXECD |
- DISP_LOOKUP_POS));
-
- rc = mo_attr_get(env, mdt_object_child(o), ma);
- if (rc == 0)
- rc = mdt_finish_open(info, NULL, o, flags, 0, rep);
- } else if (rc == 0) {
- rc = -ENOENT;
- } else {
+ if (unlikely(mdt_object_remote(o))) {
/* the child object was created on remote server */
struct mdt_body *repbody;
+
+ mdt_set_disposition(info, rep, (DISP_IT_EXECD |
+ DISP_LOOKUP_EXECD |
+ DISP_LOOKUP_POS));
repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
repbody->fid1 = *rr->rr_fid2;
repbody->valid |= (OBD_MD_FLID | OBD_MD_MDS);
rc = 0;
- }
+ } else {
+ if (mdt_object_exists(o)) {
+ mdt_set_disposition(info, rep, (DISP_IT_EXECD |
+ DISP_LOOKUP_EXECD |
+ DISP_LOOKUP_POS));
+
+ rc = mdt_attr_get_complex(info, o, ma);
+ if (rc == 0)
+ rc = mdt_finish_open(info, NULL, o, flags, 0,
+ rep);
+ } else {
+ rc = -ENOENT;
+ }
+ }
mdt_object_put(info->mti_env, o);
RETURN(rc);
}
-static int mdt_open_anon_by_fid(struct mdt_thread_info* info,
- struct ldlm_reply *rep,
- struct mdt_lock_handle *lhc)
+/* lock object for open */
+static int mdt_object_open_lock(struct mdt_thread_info *info,
+ struct mdt_object *obj,
+ struct mdt_lock_handle *lhc,
+ __u64 *ibits)
{
- __u32 flags = info->mti_spec.sp_cr_flags;
- struct mdt_reint_record *rr = &info->mti_rr;
- struct md_attr *ma = &info->mti_attr;
+ struct md_attr *ma = &info->mti_attr;
+ __u64 open_flags = info->mti_spec.sp_cr_flags;
+ ldlm_mode_t lm = LCK_CR;
+ bool acq_lease = !!(open_flags & MDS_OPEN_LEASE);
+ bool try_layout = false;
+ bool create_layout = false;
+ int rc = 0;
+ ENTRY;
+
+ *ibits = 0;
+ mdt_lock_handle_init(lhc);
+
+ if (req_is_replay(mdt_info_req(info)))
+ RETURN(0);
+
+ if (S_ISREG(lu_object_attr(&obj->mot_obj))) {
+ if (ma->ma_need & MA_LOV && !(ma->ma_valid & MA_LOV) &&
+ md_should_create(open_flags))
+ create_layout = true;
+ if (exp_connect_layout(info->mti_exp) && !create_layout &&
+ ma->ma_need & MA_LOV)
+ try_layout = true;
+ }
+
+ if (acq_lease) {
+ /* lease open, acquire write mode of open sem */
+ down_write(&obj->mot_open_sem);
+
+ /* Lease exists and ask for new lease */
+ if (atomic_read(&obj->mot_lease_count) > 0) {
+ /* only exclusive open is supported, so lease
+ * are conflicted to each other */
+ GOTO(out, rc = -EBUSY);
+ }
+
+ /* Lease must be with open lock */
+ if (!(open_flags & MDS_OPEN_LOCK)) {
+ CERROR("Request lease for file:"DFID ", but open lock "
+ "is missed, open_flags = "LPO64".\n",
+ PFID(mdt_object_fid(obj)), open_flags);
+ GOTO(out, rc = -EPROTO);
+ }
+
+ /* XXX: only exclusive open is supported. */
+ lm = LCK_EX;
+ *ibits = MDS_INODELOCK_OPEN;
+
+ /* never grant LCK_EX layout lock to client */
+ try_layout = false;
+ } else { /* normal open */
+ /* normal open holds read mode of open sem */
+ down_read(&obj->mot_open_sem);
+
+ if (open_flags & MDS_OPEN_LOCK) {
+ if (open_flags & FMODE_WRITE)
+ lm = LCK_CW;
+ /* if file is released, we can't deny write because we must
+ * restore (write) it to access it. */
+ else if ((open_flags & MDS_FMODE_EXEC) &&
+ !((ma->ma_valid & MA_HSM) &&
+ (ma->ma_hsm.mh_flags & HS_RELEASED)))
+ lm = LCK_PR;
+ else
+ lm = LCK_CR;
+
+ *ibits = MDS_INODELOCK_LOOKUP | MDS_INODELOCK_OPEN;
+ } else if (atomic_read(&obj->mot_lease_count) > 0) {
+ if (open_flags & FMODE_WRITE)
+ lm = LCK_CW;
+ else
+ lm = LCK_CR;
+
+ /* revoke lease */
+ *ibits = MDS_INODELOCK_OPEN;
+ try_layout = false;
+
+ lhc = &info->mti_lh[MDT_LH_LOCAL];
+ }
+ CDEBUG(D_INODE, "normal open:"DFID" lease count: %d, lm: %d\n",
+ PFID(mdt_object_fid(obj)),
+ atomic_read(&obj->mot_open_count), lm);
+ }
+
+ mdt_lock_reg_init(lhc, lm);
+
+ /* one problem to return layout lock on open is that it may result
+ * in too many layout locks cached on the client side. */
+ if (!OBD_FAIL_CHECK(OBD_FAIL_MDS_NO_LL_OPEN) && try_layout) {
+ /* return lookup lock to validate inode at the client side,
+ * this is pretty important otherwise mdt will return layout
+ * lock for each open.
+ * However this is a double-edged sword because changing
+ * permission will revoke huge # of LOOKUP locks. */
+ *ibits |= MDS_INODELOCK_LAYOUT | MDS_INODELOCK_LOOKUP;
+ if (!mdt_object_lock_try(info, obj, lhc, *ibits,
+ MDT_CROSS_LOCK)) {
+ *ibits &= ~(MDS_INODELOCK_LAYOUT|MDS_INODELOCK_LOOKUP);
+ if (*ibits != 0)
+ rc = mdt_object_lock(info, obj, lhc, *ibits,
+ MDT_CROSS_LOCK);
+ }
+ } else if (*ibits != 0) {
+ rc = mdt_object_lock(info, obj, lhc, *ibits, MDT_CROSS_LOCK);
+ }
+
+ CDEBUG(D_INODE, "Requested bits lock:"DFID ", ibits = "LPX64
+ ", open_flags = "LPO64", try_layout = %d, rc = %d\n",
+ PFID(mdt_object_fid(obj)), *ibits, open_flags, try_layout, rc);
+
+ /* will change layout, revoke layout locks by enqueuing EX lock. */
+ if (rc == 0 && create_layout) {
+ struct mdt_lock_handle *ll = &info->mti_lh[MDT_LH_LAYOUT];
+
+ CDEBUG(D_INODE, "Will create layout, get EX layout lock:"DFID
+ ", open_flags = "LPO64"\n",
+ PFID(mdt_object_fid(obj)), open_flags);
+
+ LASSERT(!try_layout);
+ mdt_lock_handle_init(ll);
+ mdt_lock_reg_init(ll, LCK_EX);
+ rc = mdt_object_lock(info, obj, ll, MDS_INODELOCK_LAYOUT,
+ MDT_LOCAL_LOCK);
+
+ OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_LL_BLOCK, 2);
+ }
+
+ /* Check if there is any other open handles after acquiring
+ * open lock. At this point, caching open handles have been revoked
+ * by open lock.
+ * XXX: Now only exclusive open is supported. Need to check the
+ * type of open for generic lease support. */
+ if (rc == 0 && acq_lease) {
+ struct ptlrpc_request *req = mdt_info_req(info);
+ struct mdt_export_data *med = &req->rq_export->exp_mdt_data;
+ struct mdt_file_data *mfd;
+ bool is_replay_or_resent;
+ int open_count = 0;
+
+ /* For lease: application can open a file and then apply lease,
+ * @handle contains original open handle in that case.
+ * In recovery, open REQ will be replayed and the lease REQ may
+ * be resent that means the open handle is already stale, so we
+ * need to fix it up here by finding new handle. */
+ is_replay_or_resent = req_is_replay(req) ||
+ lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT;
+
+ /* if the request is _not_ a replay request, rr_handle
+ * may be used to hold an openhandle which is issuing the
+ * lease request, so that this openhandle doesn't count. */
+ mfd = mdt_handle2mfd(med, info->mti_rr.rr_handle,
+ is_replay_or_resent);
+ if (mfd != NULL)
+ ++open_count;
+
+ CDEBUG(D_INODE, "acq_lease "DFID": openers: %d, want: %d\n",
+ PFID(mdt_object_fid(obj)),
+ atomic_read(&obj->mot_open_count), open_count);
+
+ if (atomic_read(&obj->mot_open_count) > open_count)
+ GOTO(out, rc = -EBUSY);
+ }
+ GOTO(out, rc);
+
+out:
+ RETURN(rc);
+}
+
+static void mdt_object_open_unlock(struct mdt_thread_info *info,
+ struct mdt_object *obj,
+ struct mdt_lock_handle *lhc,
+ __u64 ibits, int rc)
+{
+ __u64 open_flags = info->mti_spec.sp_cr_flags;
+ struct mdt_lock_handle *ll = &info->mti_lh[MDT_LH_LOCAL];
+ ENTRY;
+
+ if (req_is_replay(mdt_info_req(info)))
+ RETURN_EXIT;
+
+ /* Release local lock - the lock put in MDT_LH_LOCAL will never
+ * return to client side. */
+ if (lustre_handle_is_used(&ll->mlh_reg_lh))
+ mdt_object_unlock(info, obj, ll, 1);
+
+ ll = &info->mti_lh[MDT_LH_LAYOUT];
+ /* Release local layout lock, layout was created */
+ if (lustre_handle_is_used(&ll->mlh_reg_lh)) {
+ LASSERT(!(ibits & MDS_INODELOCK_LAYOUT));
+ mdt_object_unlock(info, obj, ll, 1);
+ }
+
+ if (open_flags & MDS_OPEN_LEASE)
+ up_write(&obj->mot_open_sem);
+ else
+ up_read(&obj->mot_open_sem);
+
+ /* Cross-ref case, the lock should be returned to the client */
+ if (ibits == 0 || rc == -EREMOTE)
+ RETURN_EXIT;
+
+ if (!(open_flags & MDS_OPEN_LOCK) && !(ibits & MDS_INODELOCK_LAYOUT)) {
+ /* for the open request, the lock will only return to client
+ * if open or layout lock is granted. */
+ rc = 1;
+ }
+
+ if (rc != 0) {
+ struct ldlm_reply *ldlm_rep;
+
+ ldlm_rep = req_capsule_server_get(info->mti_pill, &RMF_DLM_REP);
+ mdt_clear_disposition(info, ldlm_rep, DISP_OPEN_LOCK);
+ mdt_object_unlock(info, obj, lhc, 1);
+ }
+ RETURN_EXIT;
+}
+
+/**
+ * Check release is permitted for the current HSM flags.
+ */
+static bool mdt_hsm_release_allow(struct md_attr *ma)
+{
+ if (!(ma->ma_valid & MA_HSM))
+ return false;
+
+ if (ma->ma_hsm.mh_flags & (HS_DIRTY|HS_NORELEASE|HS_LOST))
+ return false;
+
+ if (!(ma->ma_hsm.mh_flags & HS_ARCHIVED))
+ return false;
+
+ return true;
+}
+
+int mdt_open_by_fid_lock(struct mdt_thread_info *info, struct ldlm_reply *rep,
+ struct mdt_lock_handle *lhc)
+{
+ const struct lu_env *env = info->mti_env;
+ struct mdt_device *mdt = info->mti_mdt;
+ __u64 flags = info->mti_spec.sp_cr_flags;
+ struct mdt_reint_record *rr = &info->mti_rr;
+ struct md_attr *ma = &info->mti_attr;
+ struct mdt_object *parent= NULL;
struct mdt_object *o;
int rc;
- ldlm_mode_t lm;
+ __u64 ibits = 0;
ENTRY;
- o = mdt_object_find(info->mti_env, info->mti_mdt, rr->rr_fid2);
- if (IS_ERR(o))
- RETURN(rc = PTR_ERR(o));
-
- rc = mdt_object_exists(o);
- if (rc == 0) {
- mdt_set_disposition(info, rep, (DISP_LOOKUP_EXECD |
- DISP_LOOKUP_NEG));
- GOTO(out, rc = -ENOENT);
- } else if (rc < 0) {
- CERROR("NFS remote open shouldn't happen.\n");
- GOTO(out, rc);
+ if (md_should_create(flags) && !(flags & MDS_OPEN_HAS_EA)) {
+ if (!lu_fid_eq(rr->rr_fid1, rr->rr_fid2)) {
+ parent = mdt_object_find(env, mdt, rr->rr_fid1);
+ if (IS_ERR(parent)) {
+ CDEBUG(D_INODE, "Fail to find parent "DFID
+ " for anonymous created %ld, try to"
+ " use server-side parent.\n",
+ PFID(rr->rr_fid1), PTR_ERR(parent));
+ parent = NULL;
+ }
+ }
+ if (parent == NULL)
+ ma->ma_need |= MA_PFID;
}
- mdt_set_disposition(info, rep, (DISP_IT_EXECD |
- DISP_LOOKUP_EXECD |
- DISP_LOOKUP_POS));
-
- if (flags & FMODE_WRITE)
- lm = LCK_CW;
- else if (flags & MDS_FMODE_EXEC)
- lm = LCK_PR;
- else
- lm = LCK_CR;
-
- mdt_lock_handle_init(lhc);
- mdt_lock_reg_init(lhc, lm);
- rc = mdt_object_lock(info, o, lhc,
- MDS_INODELOCK_LOOKUP | MDS_INODELOCK_OPEN,
- MDT_CROSS_LOCK);
- if (rc)
- GOTO(out, rc);
+ o = mdt_object_find(env, mdt, rr->rr_fid2);
+ if (IS_ERR(o))
+ RETURN(rc = PTR_ERR(o));
- rc = mo_attr_get(info->mti_env, mdt_object_child(o), ma);
+ if (mdt_object_remote(o)) {
+ CDEBUG(D_INFO, "%s: "DFID" is on remote MDT.\n",
+ mdt_obd_name(info->mti_mdt),
+ PFID(rr->rr_fid2));
+ GOTO(out, rc = -EREMOTE);
+ } else if (!mdt_object_exists(o)) {
+ mdt_set_disposition(info, rep,
+ DISP_IT_EXECD |
+ DISP_LOOKUP_EXECD |
+ DISP_LOOKUP_NEG);
+ GOTO(out, rc = -ENOENT);
+ }
+
+ mdt_set_disposition(info, rep, (DISP_IT_EXECD | DISP_LOOKUP_EXECD));
+
+ if (flags & MDS_OPEN_RELEASE)
+ ma->ma_need |= MA_HSM;
+ rc = mdt_attr_get_complex(info, o, ma);
+ if (rc)
+ GOTO(out, rc);
+
+ /* If a release request, check file flags are fine and ask for an
+ * exclusive open access. */
+ if (flags & MDS_OPEN_RELEASE && !mdt_hsm_release_allow(ma))
+ GOTO(out, rc = -EPERM);
+
+ rc = mdt_object_open_lock(info, o, lhc, &ibits);
if (rc)
- GOTO(out, rc);
+ GOTO(out_unlock, rc);
- if (flags & MDS_OPEN_LOCK)
- mdt_set_disposition(info, rep, DISP_OPEN_LOCK);
- rc = mdt_finish_open(info, NULL, o, flags, 0, rep);
-
- if (!(flags & MDS_OPEN_LOCK) || rc)
- mdt_object_unlock(info, o, lhc, 1);
+ if (ma->ma_valid & MA_PFID) {
+ parent = mdt_object_find(env, mdt, &ma->ma_pfid);
+ if (IS_ERR(parent)) {
+ CDEBUG(D_INODE, "Fail to find parent "DFID
+ " for anonymous created %ld, try to"
+ " use system default.\n",
+ PFID(&ma->ma_pfid), PTR_ERR(parent));
+ parent = NULL;
+ }
+ }
- GOTO(out, rc);
+ rc = mdt_finish_open(info, parent, o, flags, 0, rep);
+ if (!rc) {
+ mdt_set_disposition(info, rep, DISP_LOOKUP_POS);
+ if (flags & MDS_OPEN_LOCK)
+ mdt_set_disposition(info, rep, DISP_OPEN_LOCK);
+ if (flags & MDS_OPEN_LEASE)
+ mdt_set_disposition(info, rep, DISP_OPEN_LEASE);
+ }
+ GOTO(out_unlock, rc);
+
+out_unlock:
+ mdt_object_open_unlock(info, o, lhc, ibits, rc);
out:
- mdt_object_put(info->mti_env, o);
- return rc;
+ mdt_object_put(env, o);
+ if (parent != NULL)
+ mdt_object_put(env, parent);
+ return rc;
}
int mdt_pin(struct mdt_thread_info* info)
}
/* Cross-ref request. Currently it can only be a pure open (w/o create) */
-static int mdt_cross_open(struct mdt_thread_info* info,
- const struct lu_fid *fid,
- struct ldlm_reply *rep, __u32 flags)
+static int mdt_cross_open(struct mdt_thread_info *info,
+ const struct lu_fid *parent_fid,
+ const struct lu_fid *fid,
+ struct ldlm_reply *rep, __u32 flags)
{
struct md_attr *ma = &info->mti_attr;
struct mdt_object *o;
if (IS_ERR(o))
RETURN(rc = PTR_ERR(o));
- rc = mdt_object_exists(o);
- if (rc > 0) {
- /* Do permission check for cross-open. */
- rc = mo_permission(info->mti_env, NULL, mdt_object_child(o),
- NULL, flags | MDS_OPEN_CROSS);
- if (rc)
- goto out;
-
- mdt_set_capainfo(info, 0, fid, BYPASS_CAPA);
- rc = mo_attr_get(info->mti_env, mdt_object_child(o), ma);
- if (rc == 0)
- rc = mdt_finish_open(info, NULL, o, flags, 0, rep);
- } else if (rc == 0) {
- /*
- * Something is wrong here. lookup was positive but there is
- * no object!
- */
- CERROR("Cross-ref object doesn't exist!\n");
- rc = -EFAULT;
- } else {
- /* Something is wrong here, the object is on another MDS! */
- CERROR("The object isn't on this server! FLD error?\n");
- LU_OBJECT_DEBUG(D_WARNING, info->mti_env,
- &o->mot_obj.mo_lu,
- "Object isn't on this server! FLD error?\n");
-
+ if (mdt_object_remote(o)) {
+ /* Something is wrong here, the object is on another MDS! */
+ CERROR("%s: "DFID" isn't on this server!: rc = %d\n",
+ mdt_obd_name(info->mti_mdt), PFID(fid), -EFAULT);
+ LU_OBJECT_DEBUG(D_WARNING, info->mti_env,
+ &o->mot_obj,
+ "Object isn't on this server! FLD error?\n");
rc = -EFAULT;
+ } else {
+ if (mdt_object_exists(o)) {
+ /* Do permission check for cross-open. */
+ rc = mo_permission(info->mti_env, NULL,
+ mdt_object_child(o),
+ NULL, flags | MDS_OPEN_CROSS);
+ if (rc)
+ goto out;
+
+ mdt_set_capainfo(info, 0, fid, BYPASS_CAPA);
+ rc = mdt_attr_get_complex(info, o, ma);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ /* Do not create lov object if the fid is opened
+ * under OBF */
+ if (S_ISREG(ma->ma_attr.la_mode) &&
+ !(ma->ma_valid & MA_LOV) && (flags & FMODE_WRITE) &&
+ fid_is_obf(parent_fid))
+ GOTO(out, rc = -EPERM);
+
+ rc = mdt_finish_open(info, NULL, o, flags, 0, rep);
+ } else {
+ /*
+ * Something is wrong here. lookup was positive but
+ * there is no object!
+ */
+ CERROR("%s: "DFID" doesn't exist!: rc = %d\n",
+ mdt_obd_name(info->mti_mdt), PFID(fid), -EFAULT);
+ rc = -EFAULT;
+ }
}
-
out:
mdt_object_put(info->mti_env, o);
RETURN(rc);
struct lu_fid *child_fid = &info->mti_tmp_fid1;
struct md_attr *ma = &info->mti_attr;
__u64 create_flags = info->mti_spec.sp_cr_flags;
+ __u64 ibits;
struct mdt_reint_record *rr = &info->mti_rr;
struct lu_name *lname;
int result, rc;
OBD_FAIL_TIMEOUT_ORSET(OBD_FAIL_MDS_PAUSE_OPEN, OBD_FAIL_ONCE,
(obd_timeout + 1) / 4);
- mdt_counter_incr(req->rq_export, LPROC_MDT_OPEN);
+ mdt_counter_incr(req, LPROC_MDT_OPEN);
repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
ma->ma_lmm = req_capsule_server_get(info->mti_pill, &RMF_MDT_MD);
PFID(rr->rr_fid1), rr->rr_name,
PFID(rr->rr_fid2), create_flags,
ma->ma_attr.la_mode, msg_flags);
-
- if (req_is_replay(req) ||
- (req->rq_export->exp_libclient && create_flags&MDS_OPEN_HAS_EA)) {
- /* This is a replay request or from liblustre with ea. */
- result = mdt_open_by_fid(info, ldlm_rep);
-
- if (result != -ENOENT) {
- if (req->rq_export->exp_libclient &&
- create_flags&MDS_OPEN_HAS_EA)
- GOTO(out, result = 0);
- GOTO(out, result);
- }
- /*
- * We didn't find the correct object, so we need to re-create it
- * via a regular replay.
- */
- if (!(create_flags & MDS_OPEN_CREAT)) {
- DEBUG_REQ(D_ERROR, req,
- "OPEN & CREAT not in open replay.");
- GOTO(out, result = -EFAULT);
- }
- CDEBUG(D_INFO, "Open replay did find object, continue as "
- "regular open\n");
- } else if (rr->rr_namelen == 0 && !info->mti_cross_ref &&
- create_flags & MDS_OPEN_LOCK) {
- result = mdt_open_anon_by_fid(info, ldlm_rep, lhc);
- GOTO(out, result);
- }
+ if (info->mti_cross_ref) {
+ /* This is cross-ref open */
+ mdt_set_disposition(info, ldlm_rep,
+ (DISP_IT_EXECD | DISP_LOOKUP_EXECD |
+ DISP_LOOKUP_POS));
+ result = mdt_cross_open(info, rr->rr_fid2, rr->rr_fid1,
+ ldlm_rep, create_flags);
+ GOTO(out, result);
+ } else if (req_is_replay(req) ||
+ (req->rq_export->exp_libclient && create_flags & MDS_OPEN_HAS_EA)) {
+ /* This is a replay request or from liblustre with ea. */
+ result = mdt_open_by_fid(info, ldlm_rep);
+
+ if (result != -ENOENT) {
+ if (req->rq_export->exp_libclient &&
+ create_flags & MDS_OPEN_HAS_EA)
+ GOTO(out, result = 0);
+ GOTO(out, result);
+ }
+ /* We didn't find the correct object, so we need to re-create it
+ * via a regular replay. */
+ if (!(create_flags & MDS_OPEN_CREAT)) {
+ DEBUG_REQ(D_ERROR, req,
+ "OPEN & CREAT not in open replay/by_fid.");
+ GOTO(out, result = -EFAULT);
+ }
+ CDEBUG(D_INFO, "No object(1), continue as regular open.\n");
+ } else if ((rr->rr_namelen == 0 && create_flags & MDS_OPEN_LOCK) ||
+ (create_flags & MDS_OPEN_BY_FID)) {
+ result = mdt_open_by_fid_lock(info, ldlm_rep, lhc);
+ /* If result is 0 then open by FID has found the file
+ * and there is nothing left for us to do here. More
+ * generally if it is anything other than -ENOENT or
+ * -EREMOTE then we return that now. If -ENOENT and
+ * MDS_OPEN_CREAT is set then we must create the file
+ * below. If -EREMOTE then we need to return a LOOKUP
+ * lock to the client, which we do below. Hence this
+ * odd looking condition. See LU-2523. */
+ if (!(result == -ENOENT && (create_flags & MDS_OPEN_CREAT)) &&
+ result != -EREMOTE)
+ GOTO(out, result);
+
+ if (unlikely(rr->rr_namelen == 0))
+ GOTO(out, result = -EINVAL);
+
+ CDEBUG(D_INFO, "No object(2), continue as regular open.\n");
+ }
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_OPEN_PACK))
GOTO(out, result = err_serious(-ENOMEM));
mdt_set_disposition(info, ldlm_rep,
(DISP_IT_EXECD | DISP_LOOKUP_EXECD));
- if (info->mti_cross_ref) {
- /* This is cross-ref open */
- mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS);
- result = mdt_cross_open(info, rr->rr_fid1, ldlm_rep,
- create_flags);
- GOTO(out, result);
- }
-
lh = &info->mti_lh[MDT_LH_PARENT];
mdt_lock_pdo_init(lh, (create_flags & MDS_OPEN_CREAT) ?
LCK_PW : LCK_PR, rr->rr_name, rr->rr_namelen);
*child_fid = *info->mti_rr.rr_fid2;
LASSERTF(fid_is_sane(child_fid), "fid="DFID"\n",
PFID(child_fid));
- } else {
- /*
- * Check for O_EXCL is moved to the mdt_finish_open(), we need to
- * return FID back in that case.
- */
- mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS);
- }
-
- child = mdt_object_find(info->mti_env, mdt, child_fid);
+ /* In the function below, .hs_keycmp resolves to
+ * lu_obj_hop_keycmp() */
+ /* coverity[overrun-buffer-val] */
+ child = mdt_object_new(info->mti_env, mdt, child_fid);
+ } else {
+ /*
+ * Check for O_EXCL is moved to the mdt_finish_open(), we need to
+ * return FID back in that case.
+ */
+ mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS);
+ child = mdt_object_find(info->mti_env, mdt, child_fid);
+ }
if (IS_ERR(child))
GOTO(out_parent, result = PTR_ERR(child));
mdt_set_capainfo(info, 1, child_fid, BYPASS_CAPA);
if (result == -ENOENT) {
+ /* Create under OBF and .lustre is not permitted */
+ if (fid_is_obf(rr->rr_fid1) || fid_is_dot_lustre(rr->rr_fid1))
+ GOTO(out_child, result = -EPERM);
+
/* save versions in reply */
mdt_version_get_save(info, parent, 0);
mdt_version_get_save(info, child, 1);
mdt_clear_disposition(info, ldlm_rep, DISP_OPEN_CREATE);
GOTO(out_child, result);
} else {
+
+ /* XXX: we should call this once, see few lines below */
+ if (result == 0)
+ result = mdt_attr_get_complex(info, child, ma);
+
if (result != 0)
GOTO(out_child, result);
}
created = 1;
} else {
- /* We have to get attr & lov ea for this object */
- result = mo_attr_get(info->mti_env, mdt_object_child(child),
- ma);
/*
* The object is on remote node, return its FID for remote open.
*/
- if (result == -EREMOTE) {
+ if (mdt_object_remote(child)) {
/*
* Check if this lock already was sent to client and
* this is resent case. For resent case do not take lock
repbody->valid |= (OBD_MD_FLID | OBD_MD_MDS);
if (rc != 0)
result = rc;
+ else
+ result = -EREMOTE;
GOTO(out_child, result);
- }
+ } else {
+ if (mdt_object_exists(child)) {
+ /* We have to get attr & LOV EA & HSM for this
+ * object */
+ ma->ma_need |= MA_HSM;
+ result = mdt_attr_get_complex(info, child, ma);
+ } else {
+ /*object non-exist!!!*/
+ LBUG();
+ }
+ }
}
LASSERT(!lustre_handle_is_used(&lhc->mlh_reg_lh));
- /* get openlock if this is not replay and if a client requested it */
- if (!req_is_replay(req) && create_flags & MDS_OPEN_LOCK) {
- ldlm_mode_t lm;
-
- if (create_flags & FMODE_WRITE)
- lm = LCK_CW;
- else if (create_flags & MDS_FMODE_EXEC)
- lm = LCK_PR;
- else
- lm = LCK_CR;
- mdt_lock_handle_init(lhc);
- mdt_lock_reg_init(lhc, lm);
- rc = mdt_object_lock(info, child, lhc,
- MDS_INODELOCK_LOOKUP | MDS_INODELOCK_OPEN,
- MDT_CROSS_LOCK);
- if (rc) {
- result = rc;
- GOTO(out_child, result);
- } else {
- result = -EREMOTE;
- mdt_set_disposition(info, ldlm_rep, DISP_OPEN_LOCK);
- }
- }
-
- /* Try to open it now. */
- rc = mdt_finish_open(info, parent, child, create_flags,
- created, ldlm_rep);
- if (rc) {
- result = rc;
- if (lustre_handle_is_used(&lhc->mlh_reg_lh))
- /* openlock was acquired and mdt_finish_open failed -
- drop the openlock */
- mdt_object_unlock(info, child, lhc, 1);
- if (created) {
- ma->ma_need = 0;
- ma->ma_valid = 0;
- ma->ma_cookie_size = 0;
- info->mti_no_need_trans = 1;
- rc = mdo_unlink(info->mti_env,
- mdt_object_child(parent),
- mdt_object_child(child),
- lname,
- &info->mti_attr);
- if (rc != 0)
- CERROR("Error in cleanup of open\n");
- }
- }
- EXIT;
+ /* get openlock if this is not replay and if a client requested it */
+ if (!req_is_replay(req)) {
+ rc = mdt_object_open_lock(info, child, lhc, &ibits);
+ if (rc != 0)
+ GOTO(out_child_unlock, result = rc);
+ else if (create_flags & MDS_OPEN_LOCK)
+ mdt_set_disposition(info, ldlm_rep, DISP_OPEN_LOCK);
+ }
+
+ /* Try to open it now. */
+ rc = mdt_finish_open(info, parent, child, create_flags,
+ created, ldlm_rep);
+ if (rc) {
+ result = rc;
+ /* openlock will be released if mdt_finish_open failed */
+ mdt_clear_disposition(info, ldlm_rep, DISP_OPEN_LOCK);
+
+ if (created && create_flags & MDS_OPEN_VOLATILE) {
+ CERROR("%s: cannot open volatile file "DFID", orphan "
+ "file will be left in PENDING directory until "
+ "next reboot, rc = %d\n", mdt_obd_name(mdt),
+ PFID(mdt_object_fid(child)), rc);
+ GOTO(out_child_unlock, result);
+ }
+
+ if (created) {
+ ma->ma_need = 0;
+ ma->ma_valid = 0;
+ ma->ma_cookie_size = 0;
+ rc = mdo_unlink(info->mti_env,
+ mdt_object_child(parent),
+ mdt_object_child(child),
+ lname,
+ &info->mti_attr, 0);
+ if (rc != 0)
+ CERROR("%s: "DFID" cleanup of open: rc = %d\n",
+ mdt_obd_name(info->mti_mdt),
+ PFID(mdt_object_fid(child)), rc);
+ mdt_clear_disposition(info, ldlm_rep, DISP_OPEN_CREATE);
+ }
+ }
+ EXIT;
+out_child_unlock:
+ mdt_object_open_unlock(info, child, lhc, ibits, result);
out_child:
- mdt_object_put(info->mti_env, child);
+ mdt_object_put(info->mti_env, child);
out_parent:
- mdt_object_unlock_put(info, parent, lh, result || !created);
+ mdt_object_unlock_put(info, parent, lh, result || !created);
out:
- if (result && result != -EREMOTE)
- lustre_msg_set_transno(req->rq_repmsg, 0);
- return result;
+ if (result)
+ lustre_msg_set_transno(req->rq_repmsg, 0);
+ return result;
}
-#define MFD_CLOSED(mode) (((mode) & ~(FMODE_EPOCH | FMODE_SOM | \
- FMODE_TRUNC)) == FMODE_CLOSED)
+/**
+ * Create an orphan object use local root.
+ */
+static struct mdt_object *mdt_orphan_open(struct mdt_thread_info *info,
+ struct mdt_device *mdt,
+ const struct lu_fid *fid,
+ struct md_attr *attr, fmode_t fmode)
+{
+ const struct lu_env *env = info->mti_env;
+ struct md_op_spec *spec = &info->mti_spec;
+ struct lu_fid *rootfid = &info->mti_tmp_fid1;
+ struct mdt_object *obj = NULL;
+ struct mdt_object *local_root;
+ static const char name[] = "i_am_nobody";
+ struct lu_name *lname;
+ int rc;
+ ENTRY;
+
+ rc = dt_root_get(env, mdt->mdt_bottom, rootfid);
+ if (rc != 0)
+ RETURN(ERR_PTR(rc));
+
+ local_root = mdt_object_find(env, mdt, rootfid);
+ if (IS_ERR(local_root))
+ RETURN(local_root);
+
+ obj = mdt_object_new(env, mdt, fid);
+ if (IS_ERR(obj))
+ GOTO(out, rc = PTR_ERR(obj));
+
+ spec->sp_cr_lookup = 0;
+ spec->sp_feat = &dt_directory_features;
+ spec->sp_cr_mode = MDL_MINMODE; /* no lock */
+ spec->sp_cr_flags = MDS_OPEN_VOLATILE | fmode;
+ if (attr->ma_valid & MA_LOV) {
+ spec->u.sp_ea.eadata = attr->ma_lmm;
+ spec->u.sp_ea.eadatalen = attr->ma_lmm_size;
+ spec->sp_cr_flags |= MDS_OPEN_HAS_EA;
+ } else {
+ spec->sp_cr_flags |= MDS_OPEN_DELAY_CREATE;
+ }
+
+ lname = mdt_name(env, (char *)name, sizeof(name) - 1);
+ rc = mdo_create(env, mdt_object_child(local_root), lname,
+ mdt_object_child(obj), spec, attr);
+ if (rc == 0) {
+ rc = mo_open(env, mdt_object_child(obj), MDS_OPEN_CREATED);
+ if (rc < 0)
+ CERROR("%s: cannot open volatile file "DFID", orphan "
+ "file will be left in PENDING directory until "
+ "next reboot, rc = %d\n", mdt_obd_name(mdt),
+ PFID(fid), rc);
+ }
+ EXIT;
+
+out:
+ if (rc < 0) {
+ if (!IS_ERR(obj))
+ mdt_object_put(env, obj);
+ obj = ERR_PTR(rc);
+ }
+ mdt_object_put(env, local_root);
+ return obj;
+}
+
+static int mdt_hsm_release(struct mdt_thread_info *info, struct mdt_object *o,
+ struct md_attr *ma)
+{
+ struct mdt_lock_handle *lh = &info->mti_lh[MDT_LH_LAYOUT];
+ struct close_data *data;
+ struct ldlm_lock *lease;
+ struct mdt_object *orphan;
+ struct md_attr *orp_ma;
+ struct lu_buf *buf;
+ bool lease_broken;
+ int rc;
+ int rc2;
+ ENTRY;
+
+ data = req_capsule_client_get(info->mti_pill, &RMF_CLOSE_DATA);
+ if (data == NULL)
+ RETURN(-EPROTO);
+
+ lease = ldlm_handle2lock(&data->cd_handle);
+ if (lease == NULL)
+ RETURN(-ESTALE);
+
+ /* try to hold open_sem so that nobody else can open the file */
+ if (!down_write_trylock(&o->mot_open_sem)) {
+ ldlm_lock_cancel(lease);
+ ldlm_lock_put(lease);
+ RETURN(-EBUSY);
+ }
+
+ /* Check if the lease open lease has already canceled */
+ lock_res_and_lock(lease);
+ lease_broken = ldlm_is_cancel(lease);
+ unlock_res_and_lock(lease);
+
+ LDLM_DEBUG(lease, DFID " lease broken? %d\n",
+ PFID(mdt_object_fid(o)), lease_broken);
+
+ /* Cancel server side lease. Client side counterpart should
+ * have been cancelled. It's okay to cancel it now as we've
+ * held mot_open_sem. */
+ ldlm_lock_cancel(lease);
+ ldlm_lock_put(lease);
+
+ if (lease_broken) /* don't perform release task */
+ GOTO(out_unlock, rc = -ESTALE);
+
+ if (fid_is_zero(&data->cd_fid) || !fid_is_sane(&data->cd_fid))
+ GOTO(out_unlock, rc = -EINVAL);
+
+ /* ma_need was set before but it seems fine to change it in order to
+ * avoid modifying the one from RPC */
+ ma->ma_need = MA_HSM | MA_LOV;
+ rc = mdt_attr_get_complex(info, o, ma);
+ if (rc != 0)
+ GOTO(out_unlock, rc);
+
+ if (!mdt_hsm_release_allow(ma))
+ GOTO(out_unlock, rc = -EPERM);
+
+ /* already released? */
+ if (ma->ma_hsm.mh_flags & HS_RELEASED)
+ GOTO(out_unlock, rc = 0);
+
+ /* Compare on-disk and packed data_version */
+ if (data->cd_data_version != ma->ma_hsm.mh_arch_ver) {
+ CDEBUG(D_HSM, DFID" data_version mismatches: packed="LPU64
+ " and on-disk="LPU64"\n", PFID(mdt_object_fid(o)),
+ data->cd_data_version, ma->ma_hsm.mh_arch_ver);
+ /* XXX: Enable this line when hsm_archive is operational!
+ GOTO(out_unlock, rc = -EPERM);
+ */
+ }
+
+ ma->ma_valid = MA_INODE;
+ ma->ma_attr.la_valid &= LA_SIZE | LA_MTIME | LA_ATIME;
+ rc = mo_attr_set(info->mti_env, mdt_object_child(o), ma);
+ if (rc < 0)
+ GOTO(out_unlock, rc);
+
+ if (!(ma->ma_valid & MA_LOV)) {
+ /* Even empty file are released */
+ memset(ma->ma_lmm, 0, sizeof(*ma->ma_lmm));
+ ma->ma_lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V1_DEF);
+ ma->ma_lmm->lmm_pattern = cpu_to_le32(LOV_PATTERN_RAID0);
+ ma->ma_lmm->lmm_stripe_size = cpu_to_le32(LOV_MIN_STRIPE_SIZE);
+ ma->ma_valid |= MA_LOV;
+ } else {
+ /* Magic must be LOV_MAGIC_Vx_DEF otherwise LOD will interpret
+ * ma_lmm as lov_user_md, then it will be confused by union of
+ * layout_gen and stripe_offset. */
+ if (le32_to_cpu(ma->ma_lmm->lmm_magic) == LOV_MAGIC_V1)
+ ma->ma_lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V1_DEF);
+ else if (le32_to_cpu(ma->ma_lmm->lmm_magic) == LOV_MAGIC_V3)
+ ma->ma_lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V3_DEF);
+ else
+ GOTO(out_unlock, rc = -EINVAL);
+ }
+
+ /* Set file as released */
+ ma->ma_lmm->lmm_pattern |= cpu_to_le32(LOV_PATTERN_F_RELEASED);
+
+ /* Hopefully it's not used in this call path */
+ orp_ma = &info->mti_u.som.attr;
+ orp_ma->ma_valid = MA_INODE | MA_LOV;
+ orp_ma->ma_attr.la_mode = S_IFREG;
+ orp_ma->ma_attr.la_valid = LA_MODE;
+ orp_ma->ma_lmm = ma->ma_lmm;
+ orp_ma->ma_lmm_size = ma->ma_lmm_size;
+ orphan = mdt_orphan_open(info, info->mti_mdt, &data->cd_fid, orp_ma,
+ FMODE_WRITE);
+ if (IS_ERR(orphan)) {
+ CERROR("%s: cannot open orphan file "DFID": rc = %ld\n",
+ mdt_obd_name(info->mti_mdt), PFID(&data->cd_fid),
+ PTR_ERR(orphan));
+ GOTO(out_unlock, rc = PTR_ERR(orphan));
+ }
+
+ /* Set up HSM attribute for orphan object */
+ CLASSERT(sizeof(struct hsm_attrs) <= sizeof(info->mti_xattr_buf));
+ buf = &info->mti_buf;
+ buf->lb_buf = info->mti_xattr_buf;
+ buf->lb_len = sizeof(struct hsm_attrs);
+ ma->ma_hsm.mh_flags |= HS_RELEASED;
+ lustre_hsm2buf(buf->lb_buf, &ma->ma_hsm);
+ ma->ma_hsm.mh_flags &= ~HS_RELEASED;
+ rc = mo_xattr_set(info->mti_env, mdt_object_child(orphan), buf,
+ XATTR_NAME_HSM, 0);
+ if (rc < 0)
+ GOTO(out_close, rc);
+
+ mdt_lock_reg_init(lh, LCK_EX);
+ rc = mdt_object_lock(info, o, lh, MDS_INODELOCK_LAYOUT, MDT_LOCAL_LOCK);
+ if (rc == 0) {
+ /* Swap layout with orphan object */
+ rc = mo_swap_layouts(info->mti_env, mdt_object_child(o),
+ mdt_object_child(orphan),
+ SWAP_LAYOUTS_MDS_HSM);
+
+ /* Release exclusive LL */
+ mdt_object_unlock(info, o, lh, 1);
+ }
+ EXIT;
+
+out_close:
+ /* Close orphan object anyway */
+ rc2 = mo_close(info->mti_env, mdt_object_child(orphan), orp_ma,
+ FMODE_WRITE);
+ if (rc2 < 0)
+ CERROR("%s: error closing volatile file "DFID": rc = %d\n",
+ mdt_obd_name(info->mti_mdt), PFID(&data->cd_fid), rc2);
+ LU_OBJECT_DEBUG(D_HSM, info->mti_env, &orphan->mot_obj,
+ "object closed\n");
+ mdt_object_put(info->mti_env, orphan);
+
+out_unlock:
+ up_write(&o->mot_open_sem);
+
+ if (rc == 0) { /* already released */
+ struct mdt_body *repbody;
+ repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
+ LASSERT(repbody != NULL);
+ repbody->valid |= OBD_MD_FLRELEASED;
+ }
+
+ ma->ma_valid = 0;
+ ma->ma_need = 0;
+ return rc;
+}
+
+#define MFD_CLOSED(mode) (((mode) & ~(MDS_FMODE_EPOCH | MDS_FMODE_SOM | \
+ MDS_FMODE_TRUNC)) == MDS_FMODE_CLOSED)
static int mdt_mfd_closed(struct mdt_file_data *mfd)
{
struct md_attr *ma = &info->mti_attr;
int ret = MDT_IOEPOCH_CLOSED;
int rc = 0;
- int mode;
+ __u64 mode;
ENTRY;
mode = mfd->mfd_mode;
- if ((mode & FMODE_WRITE) || (mode & FMODE_TRUNC)) {
+ if (ma->ma_attr_flags & MDS_HSM_RELEASE) {
+ rc = mdt_hsm_release(info, o, ma);
+ if (rc < 0) {
+ CDEBUG(D_HSM, "%s: File " DFID " release failed: %d\n",
+ mdt_obd_name(info->mti_mdt),
+ PFID(mdt_object_fid(o)), rc);
+ /* continue to close even error occurred. */
+ }
+ }
+
+ if ((mode & FMODE_WRITE) || (mode & MDS_FMODE_TRUNC)) {
mdt_write_put(o);
ret = mdt_ioepoch_close(info, o);
} else if (mode & MDS_FMODE_EXEC) {
mdt_write_allow(o);
- } else if (mode & FMODE_EPOCH) {
+ } else if (mode & MDS_FMODE_EPOCH) {
ret = mdt_ioepoch_close(info, o);
- } else if (mode & FMODE_SOM) {
+ } else if (mode & MDS_FMODE_SOM) {
ret = mdt_som_au_close(info, o);
}
rc = mo_attr_set(info->mti_env, next, ma);
}
+ /* If file data is modified, add the dirty flag. */
+ if (ma->ma_attr_flags & MDS_DATA_MODIFIED)
+ rc = mdt_add_dirty_flag(info, o, ma);
+
ma->ma_need |= MA_INODE;
- ma->ma_valid = 0;
+ ma->ma_valid &= ~MA_INODE;
if (!MFD_CLOSED(mode))
- rc = mo_close(info->mti_env, next, ma);
+ rc = mo_close(info->mti_env, next, ma, mode);
if (ret == MDT_IOEPOCH_GETATTR || ret == MDT_IOEPOCH_OPENED) {
struct mdt_export_data *med;
* Put mfd back into the list. */
LASSERT(mdt_conn_flags(info) & OBD_CONNECT_SOM);
mdt_mfd_set_mode(mfd, ret == MDT_IOEPOCH_OPENED ?
- FMODE_EPOCH : FMODE_SOM);
+ MDS_FMODE_EPOCH : MDS_FMODE_SOM);
LASSERT(mdt_info_req(info));
med = &mdt_info_req(info)->rq_export->exp_mdt_data;
- cfs_spin_lock(&med->med_open_lock);
- cfs_list_add(&mfd->mfd_list, &med->med_open_head);
- class_handle_hash_back(&mfd->mfd_handle);
- cfs_spin_unlock(&med->med_open_lock);
+ spin_lock(&med->med_open_lock);
+ cfs_list_add(&mfd->mfd_list, &med->med_open_head);
+ class_handle_hash_back(&mfd->mfd_handle);
+ spin_unlock(&med->med_open_lock);
if (ret == MDT_IOEPOCH_OPENED) {
ret = 0;
"needed on "DFID"\n", PFID(mdt_object_fid(o)));
}
} else {
- mdt_mfd_free(mfd);
- mdt_object_put(info->mti_env, o);
- }
-
- RETURN(rc ? rc : ret);
+ /* adjust open and lease count */
+ if (mode & MDS_OPEN_LEASE) {
+ LASSERT(atomic_read(&o->mot_lease_count) > 0);
+ atomic_dec(&o->mot_lease_count);
+ }
+ LASSERT(atomic_read(&o->mot_open_count) > 0);
+ atomic_dec(&o->mot_open_count);
+
+ mdt_mfd_free(mfd);
+ mdt_object_put(info->mti_env, o);
+ }
+
+ RETURN(rc ? rc : ret);
}
int mdt_close(struct mdt_thread_info *info)
int rc, ret = 0;
ENTRY;
- mdt_counter_incr(req->rq_export, LPROC_MDT_CLOSE);
+ mdt_counter_incr(req, LPROC_MDT_CLOSE);
/* Close may come with the Size-on-MDS update. Unpack it. */
rc = mdt_close_unpack(info);
if (rc)
info->mti_mdt->mdt_max_cookiesize);
rc = req_capsule_server_pack(info->mti_pill);
if (mdt_check_resent(info, mdt_reconstruct_generic, NULL)) {
+ mdt_client_compatibility(info);
if (rc == 0)
- mdt_shrink_reply(info);
+ mdt_fix_reply(info);
+ mdt_exit_ucred(info);
RETURN(lustre_msg_get_status(req->rq_repmsg));
}
}
med = &req->rq_export->exp_mdt_data;
- cfs_spin_lock(&med->med_open_lock);
- mfd = mdt_handle2mfd(info, &info->mti_ioepoch->handle);
- if (mdt_mfd_closed(mfd)) {
- cfs_spin_unlock(&med->med_open_lock);
- CDEBUG(D_INODE, "no handle for file close: fid = "DFID
- ": cookie = "LPX64"\n", PFID(info->mti_rr.rr_fid1),
- info->mti_ioepoch->handle.cookie);
- /** not serious error since bug 3633 */
- rc = -ESTALE;
- } else {
- class_handle_unhash(&mfd->mfd_handle);
- cfs_list_del_init(&mfd->mfd_list);
- cfs_spin_unlock(&med->med_open_lock);
+ spin_lock(&med->med_open_lock);
+ mfd = mdt_handle2mfd(med, &info->mti_ioepoch->handle,
+ req_is_replay(req));
+ if (mdt_mfd_closed(mfd)) {
+ spin_unlock(&med->med_open_lock);
+ CDEBUG(D_INODE, "no handle for file close: fid = "DFID
+ ": cookie = "LPX64"\n", PFID(info->mti_rr.rr_fid1),
+ info->mti_ioepoch->handle.cookie);
+ /** not serious error since bug 3633 */
+ rc = -ESTALE;
+ } else {
+ class_handle_unhash(&mfd->mfd_handle);
+ cfs_list_del_init(&mfd->mfd_list);
+ spin_unlock(&med->med_open_lock);
/* Do not lose object before last unlink. */
o = mfd->mfd_object;
ret = mdt_mfd_close(info, mfd);
if (repbody != NULL)
rc = mdt_handle_last_unlink(info, o, ma);
- mdt_empty_transno(info);
+ mdt_empty_transno(info, rc);
mdt_object_put(info->mti_env, o);
}
- if (repbody != NULL)
- mdt_shrink_reply(info);
+ if (repbody != NULL) {
+ mdt_client_compatibility(info);
+ rc = mdt_fix_reply(info);
+ }
+ mdt_exit_ucred(info);
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_CLOSE_PACK))
RETURN(err_serious(-ENOMEM));
if (rc)
RETURN(err_serious(rc));
- if (mdt_check_resent(info, mdt_reconstruct_generic, NULL))
- RETURN(lustre_msg_get_status(req->rq_repmsg));
+ if (mdt_check_resent(info, mdt_reconstruct_generic, NULL)) {
+ mdt_exit_ucred(info);
+ RETURN(lustre_msg_get_status(req->rq_repmsg));
+ }
med = &info->mti_exp->exp_mdt_data;
- cfs_spin_lock(&med->med_open_lock);
- mfd = mdt_handle2mfd(info, &info->mti_ioepoch->handle);
- if (mfd == NULL) {
- cfs_spin_unlock(&med->med_open_lock);
+ spin_lock(&med->med_open_lock);
+ mfd = mdt_handle2mfd(med, &info->mti_ioepoch->handle,
+ req_is_replay(req));
+ if (mfd == NULL) {
+ spin_unlock(&med->med_open_lock);
CDEBUG(D_INODE, "no handle for done write: fid = "DFID
": cookie = "LPX64" ioepoch = "LPU64"\n",
PFID(info->mti_rr.rr_fid1),
info->mti_ioepoch->ioepoch);
/* If this is a replay, reconstruct the transno. */
if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
- mdt_empty_transno(info);
- RETURN(info->mti_ioepoch->flags & MF_SOM_AU ?
- -EAGAIN : 0);
- }
- RETURN(-ESTALE);
+ rc = info->mti_ioepoch->flags & MF_SOM_AU ?
+ -EAGAIN : 0;
+ mdt_empty_transno(info, rc);
+ } else
+ rc = -ESTALE;
+ GOTO(error_ucred, rc);
}
- LASSERT(mfd->mfd_mode == FMODE_EPOCH ||
- mfd->mfd_mode == FMODE_TRUNC);
+ LASSERT(mfd->mfd_mode == MDS_FMODE_EPOCH ||
+ mfd->mfd_mode == MDS_FMODE_TRUNC);
class_handle_unhash(&mfd->mfd_handle);
cfs_list_del_init(&mfd->mfd_list);
- cfs_spin_unlock(&med->med_open_lock);
+ spin_unlock(&med->med_open_lock);
/* Set EPOCH CLOSE flag if not set by client. */
info->mti_ioepoch->flags |= MF_EPOCH_CLOSE;
info->mti_attr.ma_valid = 0;
info->mti_attr.ma_lmm_size = info->mti_mdt->mdt_max_mdsize;
- OBD_ALLOC(info->mti_attr.ma_lmm, info->mti_mdt->mdt_max_mdsize);
- if (info->mti_attr.ma_lmm == NULL)
- RETURN(-ENOMEM);
+ OBD_ALLOC_LARGE(info->mti_attr.ma_lmm, info->mti_mdt->mdt_max_mdsize);
+ if (info->mti_attr.ma_lmm == NULL)
+ GOTO(error_ucred, rc = -ENOMEM);
rc = mdt_mfd_close(info, mfd);
- OBD_FREE(info->mti_attr.ma_lmm, info->mti_mdt->mdt_max_mdsize);
- mdt_empty_transno(info);
- RETURN(rc);
+ OBD_FREE_LARGE(info->mti_attr.ma_lmm, info->mti_mdt->mdt_max_mdsize);
+ mdt_empty_transno(info, rc);
+error_ucred:
+ mdt_exit_ucred(info);
+ RETURN(rc);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff